{{/** A search form using DuckDuckGo, docs: https://duckduckgo.com/params **/}}
<form id="search" method="POST" action="https://duckduckgo.com/">
      {{/** the keywords **/}}
      <input type="text" name="q" maxlength="255" placeholder="搜索...">
      {{/** site search **/}}
      <input type="hidden" name="sites" value="{{ .Site.BaseURL }}">
      {{/** turn off SafaSearch **/}}
      <input type="hidden" name="kp" value="-2">
      {{/** turn on HTTPS **/}}
      <input type="hidden" name="kh" value="1">
      {{/** no region, worldwide **/}}
      <input type="hidden" name="kl" value="wt-wt">
      {{/** request method, g / p for GET / POST **/}}
      <input type="hidden" name="kg" value="p">
      {{/** full URLs **/}}
      <input type="hidden" name="kaf" value="1">
      {{/** turn off advertisements **/}}
      {{/** Please double check ToS of DuckDuckGo to see if you can do this **/}}
      <input type="hidden" name="k1" value="-1">

      {{/** theme of search result page **/}}

      {{/** Colors **/}}
      {{/** background color **/}}
      <input type="hidden" name="k7" value="#ffffff">
      {{/** header color **/}}
      <input type="hidden" name="kj" value="#ffffff">
      {{/** highlight color, this is the background when you hover a result block **/}}
      <input type="hidden" name="ky" value="#eaeaea">
      {{/** URLs color **/}}
      <input type="hidden" name="kx" value="#6E7173">
      {{/** text color **/}}
      <input type="hidden" name="k8" value="#444">
      {{/** links color **/}}
      <input type="hidden" name="k9" value="#6E7173">
      {{/** visited links color **/}}
      <input type="hidden" name="kaa" value="#6E7173">
      {{/** theme **/}}
      <input type="hidden" name="kae" value="#6E7173">

      {{/** Interface settings **}}
      {{/** turn on DuckDuckGo interface, mainly their icon **/}}
      <input type="hidden" name="ko" value="1">
      {{/** text font **/}}
      <input type="hidden" name="kt" value="n">
      {{/** link font **/}}
      <input type="hidden" name="ka" value="g">
      {{/** size **/}}
      <input type="hidden" name="ks" value="l">
      {{/** turn on pagination **/}}
      <input type="hidden" name="kv" value="1">

      <button type="submit" class="submit fa fa-search"></button>
</form>